Miscarriage. What to expect?


I found out today my babies heart stopped beating. I was 7 weeks 3 days. Phase one is waiting to naturally miscarry, if that doesn’t work medication to make it happen and if that doesn’t work surgery. What can I expect when I naturally miscarry? I have no clue what to expect, I just went out and bought maxi pads and put one on and some sweat pants and I’m just laying in bed bawling my eyes out and waiting. Can someone please tell me what happens? And don’t hold back. I would rather be ready.